Question about 2006 Aprilia Atlantic 250

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White smoke from the engine

My bike has 45.000 kms and always serviced by an Aprilia dealership.

Recently changed the fuel pump, which was leaking for a time.

When replaced the fuel pump and the engine was runing for a couple of minutes, white, heavy smoke from the engine emerged. forgot to check the water reservoir and if it was smoking from the tail pipe.

can it be that the head gasket blew? how come?

thank you for your advice

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Give it some time, probably cleaning out some residual from somewhere.....if it returns consult the people who worked on it...Keep all fluids topped up....if you had blown gasket your oil would be a milky brown...Good luck to you friend...Tim

Posted on May 13, 2009

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OK, since you didn't mention a make model, year or number of cylinders this is just an old mechanics take on the situation. Blue smoke on deceleration (closing the throttle) is because of high vacuum in the cylinder pulling oil past either the piston rings or valve seals. Usually, blue smoke on a cold start is caused by the valve seals leaking into the cylinder while the bike is sitting. A quick check to see if the piston rings are at fault would be either to come down a long steep hill or accelerate hard then close the throttle, if it emits a sizable amount of blue smoke when you open the throttle again, the rings are most likly at fault.
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Dear All, My Name : TSN Prasad My Bike : Hero Honda Glamour 2011 KM Covered : 1250, First Service Done at 540 KM My Problem : heavy White smoke arrives only when engine is Cool Sir, my bike exhaust heavy...


Hi, TSNP your instrument gauges and lights can alert you to most electrical and engine issues they can not warn you about failed engine gaskets or seals so your engine has to resort to old fashion alert methods of colored "SMOKE SIGNALS" here is a breakdown of their meaning:
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Faulty glow plugs or control module can cause white smoke on engine start up.

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